package com.myproject.interceptor;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;


/**
 * 日志拦截器 - 记录请求和响应信息
 */
public class LogInterceptor implements HandlerInterceptor {
    private static final Logger logger = LoggerFactory.getLogger(LogInterceptor.class);

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        logger.info("Request URL: {} {}", request.getMethod(), request.getRequestURL());
        logger.info("Request Parameters: {}", request.getParameterMap());
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, 
                          ModelAndView modelAndView) throws Exception {
        logger.info("Response Status: {}", response.getStatus());
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, 
                               Exception ex) throws Exception {
        if (ex != null) {
            logger.error("Request Error: {}", ex.getMessage(), ex);
        }
    }
}